I've been using MT2013 since it was launched and have a very good idea how to add, export, import, rebuilt ... I've recently reinstalled my whole FSX and it made all the difference in frame rates etc - but a curious thing happened, some airports have no AI traffic (not even on 100% AI)

For example: I've purchased LIMC (Milan) from Sim-Giants and it is a huge airport but with no AI whatsoever. Also noticed it with other airports that I've purchased. Airports that come with AI *.bgl files do not have the problem like EKCH (Fly Tampa) and LIRF (Aerosoft) but a lot of other airports are a ghost-port.

Any suggestions will help?

Thank you.

Did you remove the afcad bgl file from mytraffic for each addon airport you have? have you unchecked ground and airplane shadows in the fsx menu?